The RPG and Wargame Supply Sourcebook is a PDF full of adverts and links to various suppliers and manufacturers of games, miniatures, dice and accessories, Kickstarters etc. Each ad is hyperlinked to it’ll take you straight to the relevant site. It’s updated monthly so should stay current. We’ve certainly come across some new manufacturers that we weren’t aware of before.
There are low- and hi-res which can be downloaded from the site – gamersupplysourcebook.com